Zonr Chang | c383a50 | 2010-10-12 01:52:08 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 17 | #include "slang_backend.h" |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 18 | |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 19 | #include <string> |
| 20 | #include <vector> |
| 21 | |
| 22 | #include "clang/AST/ASTContext.h" |
| 23 | #include "clang/AST/Decl.h" |
| 24 | #include "clang/AST/DeclGroup.h" |
| 25 | |
| 26 | #include "clang/Basic/Diagnostic.h" |
| 27 | #include "clang/Basic/TargetInfo.h" |
| 28 | #include "clang/Basic/TargetOptions.h" |
| 29 | |
| 30 | #include "clang/CodeGen/ModuleBuilder.h" |
| 31 | |
| 32 | #include "clang/Frontend/CodeGenOptions.h" |
| 33 | #include "clang/Frontend/FrontendDiagnostic.h" |
| 34 | |
| 35 | #include "llvm/Assembly/PrintModulePass.h" |
| 36 | |
| 37 | #include "llvm/Bitcode/ReaderWriter.h" |
| 38 | |
| 39 | #include "llvm/CodeGen/RegAllocRegistry.h" |
| 40 | #include "llvm/CodeGen/SchedulerRegistry.h" |
| 41 | |
| 42 | #include "llvm/LLVMContext.h" |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 43 | #include "llvm/Module.h" |
| 44 | #include "llvm/Metadata.h" |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 45 | |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 46 | #include "llvm/Transforms/IPO/PassManagerBuilder.h" |
Shih-wei Liao | fcc654a | 2011-06-22 04:47:33 -0700 | [diff] [blame] | 47 | |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 48 | #include "llvm/Target/TargetData.h" |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 49 | #include "llvm/Target/TargetMachine.h" |
| 50 | #include "llvm/Target/TargetOptions.h" |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 51 | #include "llvm/Support/TargetRegistry.h" |
Shih-wei Liao | 7770326 | 2011-07-02 11:30:32 -0700 | [diff] [blame] | 52 | |
| 53 | #include "llvm/MC/SubtargetFeature.h" |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 54 | |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 55 | #include "slang_assert.h" |
Stephen Hines | 4cc499d | 2011-08-24 19:06:17 -0700 | [diff] [blame] | 56 | #include "BitWriter_2_9/ReaderWriter_2_9.h" |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 57 | |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 58 | namespace slang { |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 59 | |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 60 | void Backend::CreateFunctionPasses() { |
| 61 | if (!mPerFunctionPasses) { |
| 62 | mPerFunctionPasses = new llvm::FunctionPassManager(mpModule); |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 63 | mPerFunctionPasses->add(new llvm::TargetData(mpModule)); |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 64 | |
Shih-wei Liao | fcc654a | 2011-06-22 04:47:33 -0700 | [diff] [blame] | 65 | llvm::PassManagerBuilder PMBuilder; |
| 66 | PMBuilder.OptLevel = mCodeGenOpts.OptimizationLevel; |
| 67 | PMBuilder.populateFunctionPassManager(*mPerFunctionPasses); |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 68 | } |
| 69 | return; |
| 70 | } |
| 71 | |
| 72 | void Backend::CreateModulePasses() { |
| 73 | if (!mPerModulePasses) { |
| 74 | mPerModulePasses = new llvm::PassManager(); |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 75 | mPerModulePasses->add(new llvm::TargetData(mpModule)); |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 76 | |
Shih-wei Liao | fcc654a | 2011-06-22 04:47:33 -0700 | [diff] [blame] | 77 | llvm::PassManagerBuilder PMBuilder; |
| 78 | PMBuilder.OptLevel = mCodeGenOpts.OptimizationLevel; |
| 79 | PMBuilder.SizeLevel = mCodeGenOpts.OptimizeSize; |
| 80 | PMBuilder.SizeLevel = mCodeGenOpts.OptimizeSize; |
| 81 | if (mCodeGenOpts.UnitAtATime) { |
| 82 | PMBuilder.DisableUnitAtATime = 0; |
| 83 | } else { |
| 84 | PMBuilder.DisableUnitAtATime = 1; |
| 85 | } |
| 86 | |
| 87 | if (mCodeGenOpts.UnrollLoops) { |
| 88 | PMBuilder.DisableUnrollLoops = 0; |
| 89 | } else { |
| 90 | PMBuilder.DisableUnrollLoops = 1; |
| 91 | } |
| 92 | |
| 93 | PMBuilder.DisableSimplifyLibCalls = false; |
| 94 | PMBuilder.populateModulePassManager(*mPerModulePasses); |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 95 | } |
| 96 | return; |
| 97 | } |
| 98 | |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 99 | bool Backend::CreateCodeGenPasses() { |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 100 | if ((mOT != Slang::OT_Assembly) && (mOT != Slang::OT_Object)) |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 101 | return true; |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 102 | |
| 103 | // Now we add passes for code emitting |
| 104 | if (mCodeGenPasses) { |
| 105 | return true; |
| 106 | } else { |
| 107 | mCodeGenPasses = new llvm::FunctionPassManager(mpModule); |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 108 | mCodeGenPasses->add(new llvm::TargetData(mpModule)); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | // Create the TargetMachine for generating code. |
| 112 | std::string Triple = mpModule->getTargetTriple(); |
| 113 | |
| 114 | std::string Error; |
| 115 | const llvm::Target* TargetInfo = |
| 116 | llvm::TargetRegistry::lookupTarget(Triple, Error); |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 117 | if (TargetInfo == NULL) { |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 118 | mDiagEngine.Report(clang::diag::err_fe_unable_to_create_target) << Error; |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 119 | return false; |
| 120 | } |
| 121 | |
| 122 | llvm::NoFramePointerElim = mCodeGenOpts.DisableFPElim; |
| 123 | |
| 124 | // Use hardware FPU. |
| 125 | // |
| 126 | // FIXME: Need to detect the CPU capability and decide whether to use softfp. |
| 127 | // To use softfp, change following 2 lines to |
| 128 | // |
| 129 | // llvm::FloatABIType = llvm::FloatABI::Soft; |
| 130 | // llvm::UseSoftFloat = true; |
| 131 | llvm::FloatABIType = llvm::FloatABI::Hard; |
| 132 | llvm::UseSoftFloat = false; |
| 133 | |
| 134 | // BCC needs all unknown symbols resolved at compilation time. So we don't |
| 135 | // need any relocation model. |
Logan Chien | ab992e5 | 2011-07-20 22:06:52 +0800 | [diff] [blame] | 136 | llvm::Reloc::Model RM = llvm::Reloc::Static; |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 137 | |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 138 | // This is set for the linker (specify how large of the virtual addresses we |
| 139 | // can access for all unknown symbols.) |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 140 | llvm::CodeModel::Model CM; |
| 141 | if (mpModule->getPointerSize() == llvm::Module::Pointer32) { |
| 142 | CM = llvm::CodeModel::Small; |
| 143 | } else { |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 144 | // The target may have pointer size greater than 32 (e.g. x86_64 |
| 145 | // architecture) may need large data address model |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 146 | CM = llvm::CodeModel::Medium; |
| 147 | } |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 148 | |
| 149 | // Setup feature string |
| 150 | std::string FeaturesStr; |
| 151 | if (mTargetOpts.CPU.size() || mTargetOpts.Features.size()) { |
| 152 | llvm::SubtargetFeatures Features; |
| 153 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 154 | for (std::vector<std::string>::const_iterator |
| 155 | I = mTargetOpts.Features.begin(), E = mTargetOpts.Features.end(); |
| 156 | I != E; |
| 157 | I++) |
| 158 | Features.AddFeature(*I); |
| 159 | |
| 160 | FeaturesStr = Features.getString(); |
| 161 | } |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 162 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 163 | llvm::TargetMachine *TM = |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 164 | TargetInfo->createTargetMachine(Triple, mTargetOpts.CPU, FeaturesStr, |
| 165 | RM, CM); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 166 | |
| 167 | // Register scheduler |
| 168 | llvm::RegisterScheduler::setDefault(llvm::createDefaultScheduler); |
| 169 | |
| 170 | // Register allocation policy: |
| 171 | // createFastRegisterAllocator: fast but bad quality |
| 172 | // createLinearScanRegisterAllocator: not so fast but good quality |
| 173 | llvm::RegisterRegAlloc::setDefault((mCodeGenOpts.OptimizationLevel == 0) ? |
| 174 | llvm::createFastRegisterAllocator : |
| 175 | llvm::createLinearScanRegisterAllocator); |
| 176 | |
| 177 | llvm::CodeGenOpt::Level OptLevel = llvm::CodeGenOpt::Default; |
Shih-wei Liao | 7770326 | 2011-07-02 11:30:32 -0700 | [diff] [blame] | 178 | if (mCodeGenOpts.OptimizationLevel == 0) { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 179 | OptLevel = llvm::CodeGenOpt::None; |
Shih-wei Liao | 7770326 | 2011-07-02 11:30:32 -0700 | [diff] [blame] | 180 | } else if (mCodeGenOpts.OptimizationLevel == 3) { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 181 | OptLevel = llvm::CodeGenOpt::Aggressive; |
Shih-wei Liao | 7770326 | 2011-07-02 11:30:32 -0700 | [diff] [blame] | 182 | } |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 183 | |
| 184 | llvm::TargetMachine::CodeGenFileType CGFT = |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 185 | llvm::TargetMachine::CGFT_AssemblyFile; |
Shih-wei Liao | 7770326 | 2011-07-02 11:30:32 -0700 | [diff] [blame] | 186 | if (mOT == Slang::OT_Object) { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 187 | CGFT = llvm::TargetMachine::CGFT_ObjectFile; |
Shih-wei Liao | 7770326 | 2011-07-02 11:30:32 -0700 | [diff] [blame] | 188 | } |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 189 | if (TM->addPassesToEmitFile(*mCodeGenPasses, FormattedOutStream, |
| 190 | CGFT, OptLevel)) { |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 191 | mDiagEngine.Report(clang::diag::err_fe_unable_to_interface_with_target); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 192 | return false; |
| 193 | } |
| 194 | |
| 195 | return true; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 196 | } |
| 197 | |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 198 | Backend::Backend(clang::DiagnosticsEngine *DiagEngine, |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 199 | const clang::CodeGenOptions &CodeGenOpts, |
| 200 | const clang::TargetOptions &TargetOpts, |
Stephen Hines | 3fd0a94 | 2011-01-18 12:27:39 -0800 | [diff] [blame] | 201 | PragmaList *Pragmas, |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 202 | llvm::raw_ostream *OS, |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 203 | Slang::OutputType OT) |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 204 | : ASTConsumer(), |
| 205 | mCodeGenOpts(CodeGenOpts), |
| 206 | mTargetOpts(TargetOpts), |
Zonr Chang | 68fc02c | 2010-10-13 19:09:19 +0800 | [diff] [blame] | 207 | mpModule(NULL), |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 208 | mpOS(OS), |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 209 | mOT(OT), |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 210 | mGen(NULL), |
| 211 | mPerFunctionPasses(NULL), |
| 212 | mPerModulePasses(NULL), |
| 213 | mCodeGenPasses(NULL), |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 214 | mLLVMContext(llvm::getGlobalContext()), |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 215 | mDiagEngine(*DiagEngine), |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 216 | mPragmas(Pragmas) { |
| 217 | FormattedOutStream.setStream(*mpOS, |
| 218 | llvm::formatted_raw_ostream::PRESERVE_STREAM); |
Logan Chien | 9207a2e | 2011-10-21 15:39:28 +0800 | [diff] [blame] | 219 | mGen = CreateLLVMCodeGen(mDiagEngine, "", mCodeGenOpts, mLLVMContext); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 220 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 221 | } |
| 222 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 223 | void Backend::Initialize(clang::ASTContext &Ctx) { |
| 224 | mGen->Initialize(Ctx); |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 225 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 226 | mpModule = mGen->GetModule(); |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 227 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 228 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 229 | } |
| 230 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 231 | void Backend::HandleTopLevelDecl(clang::DeclGroupRef D) { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 232 | mGen->HandleTopLevelDecl(D); |
| 233 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 234 | } |
| 235 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 236 | void Backend::HandleTranslationUnit(clang::ASTContext &Ctx) { |
Zonr Chang | 68fc02c | 2010-10-13 19:09:19 +0800 | [diff] [blame] | 237 | HandleTranslationUnitPre(Ctx); |
| 238 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 239 | mGen->HandleTranslationUnit(Ctx); |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 240 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 241 | // Here, we complete a translation unit (whole translation unit is now in LLVM |
| 242 | // IR). Now, interact with LLVM backend to generate actual machine code (asm |
| 243 | // or machine code, whatever.) |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 244 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 245 | // Silently ignore if we weren't initialized for some reason. |
Zonr Chang | 41ebf53 | 2010-10-13 18:29:18 +0800 | [diff] [blame] | 246 | if (!mpModule) |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 247 | return; |
| 248 | |
| 249 | llvm::Module *M = mGen->ReleaseModule(); |
| 250 | if (!M) { |
| 251 | // The module has been released by IR gen on failures, do not double free. |
| 252 | mpModule = NULL; |
| 253 | return; |
| 254 | } |
| 255 | |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 256 | slangAssert(mpModule == M && |
| 257 | "Unexpected module change during LLVM IR generation"); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 258 | |
| 259 | // Insert #pragma information into metadata section of module |
Stephen Hines | 3fd0a94 | 2011-01-18 12:27:39 -0800 | [diff] [blame] | 260 | if (!mPragmas->empty()) { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 261 | llvm::NamedMDNode *PragmaMetadata = |
| 262 | mpModule->getOrInsertNamedMetadata(Slang::PragmaMetadataName); |
Stephen Hines | 3fd0a94 | 2011-01-18 12:27:39 -0800 | [diff] [blame] | 263 | for (PragmaList::const_iterator I = mPragmas->begin(), E = mPragmas->end(); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 264 | I != E; |
| 265 | I++) { |
| 266 | llvm::SmallVector<llvm::Value*, 2> Pragma; |
| 267 | // Name goes first |
| 268 | Pragma.push_back(llvm::MDString::get(mLLVMContext, I->first)); |
| 269 | // And then value |
| 270 | Pragma.push_back(llvm::MDString::get(mLLVMContext, I->second)); |
Shih-wei Liao | 83f0c62 | 2011-06-21 05:34:53 -0700 | [diff] [blame] | 271 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 272 | // Create MDNode and insert into PragmaMetadata |
| 273 | PragmaMetadata->addOperand( |
Stephen Hines | 18c8829 | 2011-07-14 22:46:15 -0700 | [diff] [blame] | 274 | llvm::MDNode::get(mLLVMContext, Pragma)); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 275 | } |
| 276 | } |
| 277 | |
Zonr Chang | 68fc02c | 2010-10-13 19:09:19 +0800 | [diff] [blame] | 278 | HandleTranslationUnitPost(mpModule); |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 279 | |
| 280 | // Create passes for optimization and code emission |
| 281 | |
| 282 | // Create and run per-function passes |
| 283 | CreateFunctionPasses(); |
| 284 | if (mPerFunctionPasses) { |
| 285 | mPerFunctionPasses->doInitialization(); |
| 286 | |
| 287 | for (llvm::Module::iterator I = mpModule->begin(), E = mpModule->end(); |
| 288 | I != E; |
| 289 | I++) |
| 290 | if (!I->isDeclaration()) |
| 291 | mPerFunctionPasses->run(*I); |
| 292 | |
| 293 | mPerFunctionPasses->doFinalization(); |
| 294 | } |
| 295 | |
| 296 | // Create and run module passes |
| 297 | CreateModulePasses(); |
| 298 | if (mPerModulePasses) |
| 299 | mPerModulePasses->run(*mpModule); |
| 300 | |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 301 | switch (mOT) { |
| 302 | case Slang::OT_Assembly: |
| 303 | case Slang::OT_Object: { |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 304 | if (!CreateCodeGenPasses()) |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 305 | return; |
| 306 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 307 | mCodeGenPasses->doInitialization(); |
| 308 | |
| 309 | for (llvm::Module::iterator I = mpModule->begin(), E = mpModule->end(); |
| 310 | I != E; |
| 311 | I++) |
zonr | 6315f76 | 2010-10-05 15:35:14 +0800 | [diff] [blame] | 312 | if (!I->isDeclaration()) |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 313 | mCodeGenPasses->run(*I); |
| 314 | |
| 315 | mCodeGenPasses->doFinalization(); |
| 316 | break; |
| 317 | } |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 318 | case Slang::OT_LLVMAssembly: { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 319 | llvm::PassManager *LLEmitPM = new llvm::PassManager(); |
| 320 | LLEmitPM->add(llvm::createPrintModulePass(&FormattedOutStream)); |
| 321 | LLEmitPM->run(*mpModule); |
| 322 | break; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 323 | } |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 324 | case Slang::OT_Bitcode: { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 325 | llvm::PassManager *BCEmitPM = new llvm::PassManager(); |
Stephen Hines | 4cc499d | 2011-08-24 19:06:17 -0700 | [diff] [blame] | 326 | if (getTargetAPI() < SLANG_ICS_TARGET_API) { |
| 327 | // Pre-ICS targets must use the LLVM 2.9 BitcodeWriter |
| 328 | BCEmitPM->add(llvm_2_9::createBitcodeWriterPass(FormattedOutStream)); |
| 329 | } else { |
| 330 | BCEmitPM->add(llvm::createBitcodeWriterPass(FormattedOutStream)); |
| 331 | } |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 332 | BCEmitPM->run(*mpModule); |
| 333 | break; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 334 | } |
Zonr Chang | 3a9ca1f | 2010-10-06 17:52:56 +0800 | [diff] [blame] | 335 | case Slang::OT_Nothing: { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 336 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 337 | } |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 338 | default: { |
Stephen Hines | 6e6578a | 2011-02-07 18:05:48 -0800 | [diff] [blame] | 339 | slangAssert(false && "Unknown output type"); |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 340 | } |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 341 | } |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 342 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 343 | FormattedOutStream.flush(); |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 344 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 345 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 346 | } |
| 347 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 348 | void Backend::HandleTagDeclDefinition(clang::TagDecl *D) { |
| 349 | mGen->HandleTagDeclDefinition(D); |
| 350 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 351 | } |
| 352 | |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 353 | void Backend::CompleteTentativeDefinition(clang::VarDecl *D) { |
| 354 | mGen->CompleteTentativeDefinition(D); |
| 355 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | Backend::~Backend() { |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 359 | delete mpModule; |
Shih-wei Liao | 9ef2f78 | 2010-10-01 12:31:37 -0700 | [diff] [blame] | 360 | delete mGen; |
| 361 | delete mPerFunctionPasses; |
| 362 | delete mPerModulePasses; |
| 363 | delete mCodeGenPasses; |
| 364 | return; |
Shih-wei Liao | 462aefd | 2010-06-04 15:32:04 -0700 | [diff] [blame] | 365 | } |
Stephen Hines | e639eb5 | 2010-11-08 19:27:20 -0800 | [diff] [blame] | 366 | |
| 367 | } // namespace slang |